Open Cell Foam Vs Closed Cell Foam: What’s the Difference?
USA. COLDWATER, MI – September 18, 2019
What is Closed Cell Foam?
With closed-cell foam, gas forms discrete pockets, each completely surrounded by solid material and sealed off, so air can not pass through. Closed cell foams are most frequently found in construction, packaging, marine, electronics, automotive, and medical.
What is Open Cell Foam?
With open-cell foam, gas pockets connect to each other and the cell walls are broken, allowing air to occupy the space.
Physical Property Differences between Closed and Open Cell Foam
Air pass through: Closed cell foam does not allow air to flow through, whereas, open cell foams allow air to pass through the material.
Insulation: Closed cell foams have a higher R-value (better insulation value) at the same density and thickness as an open cell foam.
Moisture: Closed cell foam will absorb less moisture than an open cell foam, measured as percentages.
Sound: Closed cell foams will reduce sound transmission by reflecting the sound waves while open cell foam will absorb the sound waves into its open cells and allow for sound pass through.
Rigidity: Closed cell foams will be more rigid at the same density and thickness as an open cell foam.